diff options
Diffstat (limited to 'gcc/ada/g-locfil.ads')
| -rw-r--r-- | gcc/ada/g-locfil.ads | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/gcc/ada/g-locfil.ads b/gcc/ada/g-locfil.ads index 47715c6..1034252 100644 --- a/gcc/ada/g-locfil.ads +++ b/gcc/ada/g-locfil.ads @@ -6,7 +6,7 @@ -- -- -- S p e c -- -- -- --- $Revision: 1.2 $ +-- $Revision$ -- -- -- Copyright (C) 1995-2001 Ada Core Technologies, Inc. -- -- -- @@ -32,8 +32,8 @@ -- -- ------------------------------------------------------------------------------ - -- This package contains the necessary routines for using files for the - -- purpose of providing realiable system wide locking capability. +-- This package contains the necessary routines for using files for the +-- purpose of providing realiable system wide locking capability. package GNAT.Lock_Files is pragma Preelaborate; @@ -41,27 +41,35 @@ pragma Preelaborate; Lock_Error : exception; -- Exception raised if file cannot be locked + subtype Path_Name is String; + -- Pathname is used by all services provided in this unit to specified + -- directory name and file name. On DOS based systems both directory + -- separators are handled (i.e. slash and backslash). + procedure Lock_File - (Directory : String; - Lock_File_Name : String; + (Directory : Path_Name; + Lock_File_Name : Path_Name; Wait : Duration := 1.0; Retries : Natural := Natural'Last); -- Create a lock file Lock_File_Name in directory Directory. If the file -- cannot be locked because someone already owns the lock, this procedure -- waits Wait seconds and retries at most Retries times. If the file -- still cannot be locked, Lock_Error is raised. The default is to try - -- every second, almost forever (Natural'Last times). + -- every second, almost forever (Natural'Last times). The full path of + -- the file is constructed by concatenating Directory and Lock_File_Name. + -- Directory can optionally terminate with a directory separator. procedure Lock_File - (Lock_File_Name : String; + (Lock_File_Name : Path_Name; Wait : Duration := 1.0; Retries : Natural := Natural'Last); -- See above. The full lock file path is given as one string. - procedure Unlock_File (Directory : String; Lock_File_Name : String); - -- Unlock a file + procedure Unlock_File (Directory : Path_Name; Lock_File_Name : Path_Name); + -- Unlock a file. Directory can optionally terminate with a directory + -- separator. - procedure Unlock_File (Lock_File_Name : String); + procedure Unlock_File (Lock_File_Name : Path_Name); -- Unlock a file whose full path is given in Lock_File_Name end GNAT.Lock_Files; |